Independent This document profiles the Metadata Query Protocol for use with SAML metadata. This document is a product of the Research and Education Federations (REFEDS) Working Group process. Editorial Note (To be removed by RFC Editor before publication) Discussion of this draft takes place on the MDX project issue tracker, which is accessed from [MDX.issues]. XML versions, latest edits and the issues list for this document are available from [md-query]. The changes in this draft are summarized in Appendix A.26.